Weighing scale



Dec. 18, 1934. THOMAS 1,984,606

WEIGHING SCALE Filed Nov. 12, 1927 gnumfloz [dward 6. 7770/7705 GttonnqPatented Dec. 18, 1934 UNITED STATES PATENT OFFICE Edward G.. Thomas,Toledo, Ohio, assignor to Toledo Scale Manufacturing Company, Toledo,Ohio, a corporation of New Jersey Application-November 12, 1927, SerialNo. 232,796

3 Claims. (01. 26552) This invention relates to weighing scales, and 10.The lever 10 is suitably fulcrumed upon a more particularly to mechanismfor weighing bracket 12 suspended by means of a link 13 pivbulkycommodities which, by reason of their oted to one end of an operatinglever or arm 15. shapes or weight, it is desirable to weigh while Thisarm 15 is suitably fulcrumedupon a bracket suspended rather than whilelying upon a plat 16 to the cross-bar 2 in juxtaposition to the link 5form or similar support. In the cotton ware- 13, the'other end of thearm being provided with houses it is particularly desirable to weighcoma chain 17 for convenience in operating the deparatively heavy balesof cotton by means of vice. The bracket 12 is provided with a raised ascale which may be easily transported from bead 19 which is receivedinto a recess in the 1 one place to another and which is provided withplate 18 when the lever is moved into weigh-' 10 suitable means forengaging the bales to suspend ing position and serves to properly locatethethem from the weighing mechanism without inlever. By this means thebracket 12 always encurring unnecessary labor or time consuming opgagesthe plate 18 in the same place, so that the erations. It is a usualoccurrence'in cotton warefulcrum of the lever 10 is always in the sameposihouses that several bales of cotton may be weighed tion duringweighing operations, and therefore 15 many times before the cotton isactually delivthe relative position of the load suspended from ered to apurchaser, as at the time of each specuthe hooks 6 and 7 will not causethe lever 10 to lative sale the cotton is again weighed in order swingor shift longitudinally. to satisfy the purchaser. One of the principalThe extremity of the lever 10 farthest from the 20 objects of thisinvention is the provision of a portfulcrum is provided with a pivotwhich is con- 20 able automatic weighing device for weighing comnectedby means of a stirrup 20 to a member paratively heavy and bulkycommodities. 21 secured to a watch-case-shaped housing 22 Another objectis the provision of a portable which supports and encloses theload-counterweighing system whereby the weight of the susbalancing andindicating mechanism. A mem- 25 pended commodity is indicated on a dialconber 25 which is connected to the load-counter- 25 veniently locatedadjacent the suspension membalancing mechanism and is relatively movableber and at the right height for correct reading. thereto is secured to abracket 27 fixed to the Still another object is the provision of aportframe 1. It is well known that for best weighable automatic weighingmechanism equipped ing results it is necessary that a lever move 30 withcommodity handling means which may be through an equal number of degreesabove and 30 operated without affecting or deranging the aubelow ahorizontal line passing through its fultomatic weighing mechanism. crumpivot. The member 25 engages a hook 27 Other objects and advantages willbe apparent which in turn is adjustably secured to the brackfrom thefollowing description, in which referet 27. Adjusting this member 27 upor down will ence is had to the accompanying drawing illusadjust theposition of the lever 10 without dis- 35 Hating a Preferred od m n f myinventurbing the balance of the automatic load-countion and whereinsimilar reference numerals terbalancing mechanism. This member 25 isdesignate similar parts throughout the several connected by a system oflevers (not shown) views. which are suitably connected by means of apair n h aw n of flexible metallic ribbons to a pair of load-coun- 40Figure I is a side elevational view of the device terbalancing pendulum30 which are suspended Of my invention; from a frame 32 by means offlexible metallic Figure II is an end elevational view of the ribbons,the pendulums being arranged to swing device. outwardly and upwardly tooffset or counterbal- Re g to the d a in d a the fram ance the weight ofthe commodity carried by the 4,5 of my device comprises four legs 1L-shaped in hooks 6 and 7. The pendulums are connected cross-section anda a d n p r these 1635 together by means of a flexible rectangular frameconverging at their upper ends, and secured to a 34, the latter beingconnected by means of rack bar 2 preferably of channel section, theassemand pinion mechanism (not shown) to actuate bled structure beingbraced by means of gusset an indicating hand 36 adapted to swing overand 50 plates 3 and 4. The commodity supporting co-operate with agraduated chart 37 to automeans in the embodiment illustrated comprisesmatically indicate the weight of the load. The a pair of hooks 6 and 7connected by means of automatic weighing mechanism is more fullydechains 8 to a stirrup 9 suitably suspended from scribed and claimed inPatent No. 1,577,009, to

a knife edge pivot fixed in one end of a lever L, C. Wetzel, issuedMarch 16, 1926, and, as it 55 coming; deranged when-notin use by meansofa forms no part per se'of the present invention, I will not describe itin further detail.

Connected to the stirrup 20 is a hook 38 which is connected to one endof a lever 39 suitably fulcrumed upon a bracket 40, the other end of thelever carrying a weight 41, the function of the weighted lever being toincrease the upward pull upon the load -counterbalancing mechanism inorder tdprovidmufibient initial force to float the pendulums, a'ia'ctorwhich is well known to anyone skilled in the art of manufacturingweigh,-

ing scales.

In the operation, the device is first moved to: at

position straddling a bale of cotton or other article to be weighed. Thelever 15-is thenreleased from engagement with the hook'45,-thereby lowering the fulcrum bracket 12, one end'ofthelever 10 and the commodityhooks .63 and-.71 Tire, hooks may then be engaged with the bale of.cotton and the lever 15 depressed by means or the" chain 17 untilitengagesthehook 45.. This .move

ment of the. lever 15" swings the. bale free of its support.andbrings-thei bracket into. engagement with the positioning plate18-..The weight of the bale-of cottonmay then be had. by noting theposition'of. the. indicator. 36 relatlveto the gradu- 0ationsonthe'chartfiT. A. subsequent release of the-lever 1' 5will:lowerrthebale and the'weighing device may then be moved. to. anotherweighing. position. jlhe mechanism is prevented from be.-

hook-like member 46',,the.loopof which servestosupport one end;of thelever. 10-,-.stirrup. 20 and} associated mechanism,when there is noloadcanriedi the commodity-receivinghooks.

The embodiment of; my invention herein shownand described; is I to; beregarded. as. illustrative Qo necting said lever to said automaticloadc'ounterbalancing mechanism, lmeansdepending from said lever,manually opload-supporting erated means for moving said lever to swingsaid lqadiintlo, Weighing position, and means for properliy,locatingsaidlever with respect to said frame when it is in weighingposition.

. Inza d'evicebfi the. class described, in combination, a frame,automatic load-counterbalancing mechanism, means for supporting andcoune anc ns he e ghtof said automatic loadcounterbalancing,mechanism, alever, means connecting said; lever to said" automatic load-couna nci sme han sm. oa t+supp rtingmea pen g rom saidl v and manually; pel":

edm ansio movin said lever.- toswine saidad'in awe sh n positi n; .1

i 3. In: a. device. oi the; classrd'escribed, in. come bination,. aportable frame; a lever mounted. j loadroounterbalancing;

said frame; u o m c anism;- attache saidlever and. counterebalanoed beight-seeuredtp:saidzlevema load support con teclato.saidzautomatic.load-counrba eneinameehanism-..andmeansincludinaaoperating. leverpr etwe hmanositiom a EDWABD G.

fen moving said load support.

